121602664 has 16 divisors (see below), whose sum is σ = 229004100. Its totient is φ = 60534912.

The previous prime is 121602661. The next prime is 121602703. The reversal of 121602664 is 466206121.

It can be written as a sum of positive squares in 2 ways, for example, as 89453764 + 32148900 = 9458^2 + 5670^2 .

It is not an unprimeable number, because it can be changed into a prime (121602661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31357 + ... + 35020.

Almost surely, 2^121602664 is an apocalyptic number.

It is an amenable number.

121602664 is a deficient number, since it is larger than the sum of its proper divisors (107401436).

121602664 is a wasteful number, since it uses less digits than its factorization.

121602664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66612 (or 66608 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 121602664 is about 11027.3597928063. The cubic root of 121602664 is about 495.4285497314.

Adding to 121602664 its reverse (466206121), we get a palindrome (587808785).

The spelling of 121602664 in words is "one hundred twenty-one million, six hundred two thousand, six hundred sixty-four".